TY  - JOUR
A1  - Badtke, Gernot
A1  - Ketelhut, Reinhard G.
A1  - Ketelhut, Kerstin
A1  - Messerli, Franz H.
T1  - Fitness in the fit : does physical conditioning affect cardiovascular risk factors in middle-aged marathon runners
Y1  - 1996
ER  -